Glassblock



FIG. 1 is a top, front, left-side perspective view of a glassblockshowing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left side elevational view thereof, the right side being amirror image;

FIG. 4 is a rear elevational view thereof; and,

FIG. 5 is a top plan view thereof, the opposite side being substantiallya mirror image thereof.

The ornamental design for a glassblock, as shown and described.